Manufacture of key-opening tongued tearing-strip cans.



PATENTED AUG. 11

G. W. WEBER.

APPLIOATION FILED rm. 28, 1903.

Z i 250 I 5 MANUFACTURE OF KEY OPENING TONGUED TEARING STRIP CANS.

H0 MODEL. [Q91 no. 735,850, Patented August 11, 1903.

U ITED STATES PATENT OFFICE.

GEORGE WV. WVEBER, OF ST. PAUL, MINNESOTA, ASSIGNOR TO AMERICAN CANCOMPANY, OF JERSEY OITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MANUFACTURE OF KEY-OPENING TONGUED TEARlNG-STRIP CANS.

SPECIFICATION forming part of Letters Patent N 0. 735,850, dated August11, 1903.

Application filed February 28, 1903. Seri l N 1 ,460 (N model) T al wh mit m y n rm body blank into a double can-body and sol- Be it known thatI, GEORGE W. WEBER, a deringits side seam, and then finally cuttingcitizen of the United States, residing in St. or dividing the doublecan-body at its middle Paul, in the county of Ramsey and State of intotwo separate or single can-bodies. By Minnesota, have invented a new anduseful this method or process it will thus be seen Improvement in theManufacture of Keythat the scrap or waste stock is reduced to a OpeningTongued Tearing- Strip Cans, of minimum and that the time and laborrewhich the following is a specification. quired for forming the scoresor weakened Myinvention relates toimprovementsin the lines, forming thecan-bodies, and soldering IO method or processof manufacturingkey-openthe side seams are reduced substantially one- 60 ing tonguedtearing-strip can-bodies. Herehalf. tofore in manufacturing suchcan-bodies it To enable my invention to be more readily has beencustomary to first cut thetin-plate and-clearly understood by thoseskilled in the into blanks long enough to form the can-body art, I havein the accompanying drawings, 1 and the projecting tongue ofthetearing-strip, forming a part of this specification, illus- 65 then cutaway from one end of the blank the trated the several steps or stages offorming surplus stock at each side of the tongue, so as tongued tearingstrip can bodies by my to leave the tongue projecting as required,method or process. and then form the scores or weakened lines In saiddrawings, Figure 1 represents the at each side of the tearing-strip,then bend or quadruple tongued tearing-strip can -body" 70 form theblank into a can-body and solder the blank into which a sheet oftin-plate iscut as side seam thereof. the first step. Fig. 2 shows thisquadruple The object of my invention is to provide a blank divided intotwo double can body method or process by means of which the blanks,eachhavingtwo tongues formedthereamount of scrap or waste produced in theon. Fig. 3 is the same as Fig. 2, showing the 75 manufacture of tonguedtearing-strip canparts separated for greater clearness. Fig. 4 bodiesmay be greatly reduced and by which illustrates the third step of theprocess, showalso the time, labor, and expense of manuing one of the twodouble can-body blanks factoring the can-bodies may be greatly reafterpassing through the scoring-machine to duced, thus materially cheapeningthe cost of form the scores or weakened lines at the edges 80 themanufacture. V of the twotearing-strips. Fig. 5 illustrates My inventionconsists in the means I emthe fourth step, showing the double can-bodyploy to practically accomplish this important formed from the doubleblank illustrated in object or result-that is to say, it consists inFig. 4. Fig. 6 shows the final step of severfirst cutting from a sheetof tin-plateaquading the double can-body into two separate 85 ruplecan-body blank, a blank long and wide tongued tearing strip can bodies.Fig. 7 enough to form four tongued tearing-stripped illustratesamodification in which the double can-bodies; second, dividing thisquadruple can-body blank illustrated in Fig. 4 is .diblank into twodouble can-body blanks and vided or slit into two can-body blanks while0 simultaneously forming the necessary four yet in the flat. I 0projecting tongues for the four can-bodies, In the drawings, Arepresents a quadruplethe tongues being staggered in respect to eachtongued tearing-strip can-body blank. other and all formed out of thesame inter- B B are the two double-tongued tearingvening piece of scrap,which is severed from strip can-body blanks formed from the quadthequadruple blank at the time the quadruple blankAbycutting out'at oneoperation 95 ruple blank is divided and the tongues the interveningsingle ,piece of scrap C, out formed; third, forming the scores orweakof which the four tongues 01 are simultaneened lines of the twotongued tearing-strips ously formed, all out of one and the same inoneach of the two double can-body blanks; tervening piece of scrap C. Thedies which fourth, bending or forming the double cancut out the scrap 0from the quadruple blank I00 and form the tongues 61 also form thenotches at cl at each edge of each tongue d. After the double-tonguedtearing-strip can-body blank B is thus formed itis passed betweenscoringrolls, and the four scored or weakened lines d are simultaneouslyformed on the double can-body blank, as illustrated at Fig. 4E. Thedouble can-body blank B is preferably next formed into the doublecan-body D and its side seam d soldered. The side seam 61 may be alap-seam, as illustrated in the drawings, or anyother customary form ofside seam employed in making can-bodies. After the double can-body isthus formed it is cut or divided at its middle at the dotted line d intotwo separate or single-tongned tearing-strip can-bodies F F.

If desired, the double can-body blank B after being scored orsimultaneously with the scoring operation may be slit or divided intotwo can-body blanks G G,'as illustrated in Fig. 7, though by so doingthe labor of forming the can bodies and soldering the side seams wouldthus be increased.

It will be observed that the can-bodies F formed by my process are allexactly alike and have their tearing-strips d and tongues d all in thesame relative position in respect to the top and bottom end edges of thecanbodies and of the blanks from which the canbodies are formed and thatthe top edgefis adjacent to the bottom edgef of the adjacent can body orblank and that the tongues d d" on one double blank B are staggered inre spect to the tongues d d on the other double blank B, as will beclearly understood from the dotted lines in Figs. 1, 2, and 5.

I do not claim the process or method of first making a double can-bodyblank and then simultaneously dividing it into two can-body blanks andforming a tongue on each thereof by cutting out and removing from itsmiddle portion a single piece of scrap, out of which both tongues areformed, as is more fully set forth in the pending application of BernardH. Larkin, Serial No. 148,987, filed March 21, 1903. r

l. The method or process of manufacturing tongued tearing-stripcan-bodies consisting in first making a quadruple can-body blank;second, dividing the quadruple blank into two double blanks by cuttingfrom its middle portion a single piece of scrap, out of which the fourtongues are simultaneously formed, two on each double can-body blank;said tongues being left integral each with its respective can bodyblank, and the two tongues on the one double blank being staggered inrespect to the two tongues on the other double blank, and all saidtongues being cut out of the waste middle portion at the same time saidwaste middle portion is cut from between the double can-body blanks;third, forming scores or weakened lines on the double blanks at theedges of the tearingstrips; fourth, forming the double can'body blanksinto double can-bodies and soldering the side seams thereof; and fifth,cutting or dividing the double can-bodies into single can-bodies,substantially as specified.

2. The method or process of manufacturing tongued tearin -stripcan-bodies consisting in first, making a quadruple can-body blank;second, cutting from its middle portion a single piece of scrap, andthereby dividing the quadruple blank into two double blanks, each havingtwo tongues thereon; said tongues being left integral each with itsrespective canbody blank, and the two tongues on the one double blankbeing staggered in respect to the two tongues on the other double blank,and all said tongues being cut out of the waste middle portion at thesame time said waste middle portion is cut from between the doublecan-body blanks, scoring the double blank to form the tearing-stripsthereon, forming the double blank into a double can-body, and cutting ordividing the same into single can-bodies, substantially as specified.

3. The method or process of manufacturing tongued tearing-stripcan-bodies consisting in the following steps: making the quadruplecan-bodyblank,dividingthesameintotwodouble can-body blanks and formingfour tongues, two on each double blank, by cutting out a waste middleportion from between the two double can-body blanks, said tongues beingleft integral each with its respective can-body blank, and the twotongues on the one double blank being staggered in respect to the twotongues on the other double blanks, and all said tongues being cut outof the waste middle portion at the same time said waste middle portionis cut from between the double can-body blanks and again subdividing,substantially as specified.

4c. The method or process of manufacturing tongued tearing-stripcan-bodies consisting in first making a quadruple can-body blank,dividing it into two double can-body blanks, and forming two tongues oneach double blank, by cutting out a waste middle portion from betweenthe two double can-bod y blanks, said tongues being left integral eachwith its respective can body blank, and the two tongues on the onedouble blank being staggered in respect to the two tongues on the otherdouble blanks, and all said tongues being cut out of the waste middleportion at the same time said waste middle portion is cut from betweenthe double can-body blanks and finally scoring, subdividing and formingthe same into can bodies, substantially as specified.

GEORGE W. WEBER.

Witnesses:

H. M. MUNDAY, WILLIAM A. GEIGEB.

